Marković, Jovana

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orcid::0000-0002-2673-2408
  • Marković, Jovana (13)
  • Marković, Jovana M. (2)
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Author's Bibliography

Broccoli, amaranth and red beet microgreens juices: the influence of cold-pressing on the phytochemical composition, antioxidant and sensory properties

Belošević, Spasoje; Milinčić, Danijel; Gašić, Uroš; Kostić, Aleksandar; Salević-Jelić, Ana; Marković, Jovana; Đorđević, Verica; Lević, Steva; Pešić, Mirjana; Nedović, Viktor

(2024)

TY  - JOUR
AU  - Belošević, Spasoje
AU  - Milinčić, Danijel
AU  - Gašić, Uroš
AU  - Kostić, Aleksandar
AU  - Salević-Jelić, Ana
AU  - Marković, Jovana
AU  - Đorđević, Verica
AU  - Lević, Steva
AU  - Pešić, Mirjana
AU  - Nedović, Viktor
PY  - 2024
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/6895
AB  - The aim of this study was to analyze in detail the phytochemical composition of amaranth (AMJ), red beet (RBJ), and broccoli (BCJ) microgreens and cold-pressed juices and to evaluate the antioxidant and sensory properties of the juices. The results showed the presence of various phenolic compounds in all samples, namely betalains in amaranth and red beet microgreens, while glucosinolates were only detected in broccoli microgreens. Phenolic acids and derivatives dominated in amaranth and broccoli microgreens, while apigenin C-glycosides were most abundant in red beet microgreens. Cold-pressing of microgreens into juice significantly altered the profiles of bioactive compounds. Various isothiocyanates were detected in BCJ, while more phenolic acid aglycones and their derivatives with organic acids (quinic acid and malic acid) were identified in all juices. Microgreen juices exhibited good antioxidant properties, especially ABTS•+ scavenging activity and ferric reducing antioxidant power. Microgreen juices had mild acidity, low sugar content, and good sensory acceptability and quality with the typical flavors of the respective microgreen species. Cold-pressed microgreen juices from AMJ, RBJ, and BCJ represent a rich source of bioactive compounds and can be characterized as novel functional products.
T2  - Foods
T1  - Broccoli, amaranth and red beet microgreens juices: the influence of cold-pressing on the phytochemical composition, antioxidant and sensory properties
IS  - 5
SP  - 757
VL  - 13
DO  - 10.3390/foods13050757
ER  - 
@article{
author = "Belošević, Spasoje and Milinčić, Danijel and Gašić, Uroš and Kostić, Aleksandar and Salević-Jelić, Ana and Marković, Jovana and Đorđević, Verica and Lević, Steva and Pešić, Mirjana and Nedović, Viktor",
year = "2024",
abstract = "The aim of this study was to analyze in detail the phytochemical composition of amaranth (AMJ), red beet (RBJ), and broccoli (BCJ) microgreens and cold-pressed juices and to evaluate the antioxidant and sensory properties of the juices. The results showed the presence of various phenolic compounds in all samples, namely betalains in amaranth and red beet microgreens, while glucosinolates were only detected in broccoli microgreens. Phenolic acids and derivatives dominated in amaranth and broccoli microgreens, while apigenin C-glycosides were most abundant in red beet microgreens. Cold-pressing of microgreens into juice significantly altered the profiles of bioactive compounds. Various isothiocyanates were detected in BCJ, while more phenolic acid aglycones and their derivatives with organic acids (quinic acid and malic acid) were identified in all juices. Microgreen juices exhibited good antioxidant properties, especially ABTS•+ scavenging activity and ferric reducing antioxidant power. Microgreen juices had mild acidity, low sugar content, and good sensory acceptability and quality with the typical flavors of the respective microgreen species. Cold-pressed microgreen juices from AMJ, RBJ, and BCJ represent a rich source of bioactive compounds and can be characterized as novel functional products.",
journal = "Foods",
title = "Broccoli, amaranth and red beet microgreens juices: the influence of cold-pressing on the phytochemical composition, antioxidant and sensory properties",
number = "5",
pages = "757",
volume = "13",
doi = "10.3390/foods13050757"
}
Belošević, S., Milinčić, D., Gašić, U., Kostić, A., Salević-Jelić, A., Marković, J., Đorđević, V., Lević, S., Pešić, M.,& Nedović, V.. (2024). Broccoli, amaranth and red beet microgreens juices: the influence of cold-pressing on the phytochemical composition, antioxidant and sensory properties. in Foods, 13(5), 757.
https://doi.org/10.3390/foods13050757
Belošević S, Milinčić D, Gašić U, Kostić A, Salević-Jelić A, Marković J, Đorđević V, Lević S, Pešić M, Nedović V. Broccoli, amaranth and red beet microgreens juices: the influence of cold-pressing on the phytochemical composition, antioxidant and sensory properties. in Foods. 2024;13(5):757.
doi:10.3390/foods13050757 .
Belošević, Spasoje, Milinčić, Danijel, Gašić, Uroš, Kostić, Aleksandar, Salević-Jelić, Ana, Marković, Jovana, Đorđević, Verica, Lević, Steva, Pešić, Mirjana, Nedović, Viktor, "Broccoli, amaranth and red beet microgreens juices: the influence of cold-pressing on the phytochemical composition, antioxidant and sensory properties" in Foods, 13, no. 5 (2024):757,
https://doi.org/10.3390/foods13050757 . .

Broccoli microgreens-apple juice as novel beverages: total phenolic, flavonoids and antioxidant activity

Belošević, Spasoje; Milinčić, Danijel; Salević-Jelić, Ana; Marković, Jovana; Lević, Steva; Pešić, Mirjana; Marjanović, Stefan; Đorđević, Verica; Nedović, Viktor

(University of Belgrade, Faculty of Technology and Metallurgy, 2023)

TY  - CONF
AU  - Belošević, Spasoje
AU  - Milinčić, Danijel
AU  - Salević-Jelić, Ana
AU  - Marković, Jovana
AU  - Lević, Steva
AU  - Pešić, Mirjana
AU  - Marjanović, Stefan
AU  - Đorđević, Verica
AU  - Nedović, Viktor
PY  - 2023
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/6856
AB  - Recently, microgreens have been recognized as a potential food of the future, and
their application in the formulation of new products has been scarcely investigated. Only a
few studies promote the use of microgreens and sprouts in the formulation of novel products,
primarily beverages. The most often cultivated, analyzed and used microgreens are from the
Brassicaceae family, because they present a good source of bioactive compounds, primarily
glucosinolates, isothiocyanates and phenolic compounds. However, products from these
microgreens species have a typical flavor, with herbaceous, grassy and sulphurous notes,
often repulsive to consumers. Therefore, this study aims to examine total phenolic (TPC) and
flavonoids (TFC) content, as well as antioxidant properties (ABTS•+ and FRAP) of novel
sensorially acceptable broccoli microgreens-apple juice (BC-AJ). Previously produced coldpressed
broccoli microgreens and apple juices were mixed in the ratios 51% and 49%
respectively, and further analyzed by well-known spectrophotometric methods such as Folin-
Ciocalteu's (TPC) and aluminum chloride (TFC) methods, as well as methods based on
radical scavenging (ABTS•+) and ion reducing (FRAP) activities for evaluation of antioxidant
properties. Results for the TPC and TFC of BC-AJ were 109.78 ± 1.08 mg GAE/100 mL and
64.68 ± 2.25 mg QE/100 mL, respectively. Furthermore, novel BC-AJ had a good ability to
scavenge ABTS•+ radicals (162.90 ± 4.42 mg TE/100 mL) and a tendency to reduce [Fe3+-
(TPTZ)2]3+ complexes (258.50 ± 3.26 mg TE/100 mL), probably due to the most diverse of
phenolic compounds originated from broccoli and apple. Finally, broccoli microgreens-apple
juice has a high content of phenolic compounds and good antioxidant properties, so it can be
considered as a potentially functional beverage, but future research that includes additional in
vitro and in vivo studies is necessary.
PB  - University of Belgrade, Faculty of Technology and Metallurgy
C3  - Book of Abstracts of the International Conference on Biochemical Engineering and Biotechnology for Young Scientists
T1  - Broccoli microgreens-apple juice as novel beverages: total phenolic, flavonoids and antioxidant activity
SP  - 68
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_6856
ER  - 
@conference{
author = "Belošević, Spasoje and Milinčić, Danijel and Salević-Jelić, Ana and Marković, Jovana and Lević, Steva and Pešić, Mirjana and Marjanović, Stefan and Đorđević, Verica and Nedović, Viktor",
year = "2023",
abstract = "Recently, microgreens have been recognized as a potential food of the future, and
their application in the formulation of new products has been scarcely investigated. Only a
few studies promote the use of microgreens and sprouts in the formulation of novel products,
primarily beverages. The most often cultivated, analyzed and used microgreens are from the
Brassicaceae family, because they present a good source of bioactive compounds, primarily
glucosinolates, isothiocyanates and phenolic compounds. However, products from these
microgreens species have a typical flavor, with herbaceous, grassy and sulphurous notes,
often repulsive to consumers. Therefore, this study aims to examine total phenolic (TPC) and
flavonoids (TFC) content, as well as antioxidant properties (ABTS•+ and FRAP) of novel
sensorially acceptable broccoli microgreens-apple juice (BC-AJ). Previously produced coldpressed
broccoli microgreens and apple juices were mixed in the ratios 51% and 49%
respectively, and further analyzed by well-known spectrophotometric methods such as Folin-
Ciocalteu's (TPC) and aluminum chloride (TFC) methods, as well as methods based on
radical scavenging (ABTS•+) and ion reducing (FRAP) activities for evaluation of antioxidant
properties. Results for the TPC and TFC of BC-AJ were 109.78 ± 1.08 mg GAE/100 mL and
64.68 ± 2.25 mg QE/100 mL, respectively. Furthermore, novel BC-AJ had a good ability to
scavenge ABTS•+ radicals (162.90 ± 4.42 mg TE/100 mL) and a tendency to reduce [Fe3+-
(TPTZ)2]3+ complexes (258.50 ± 3.26 mg TE/100 mL), probably due to the most diverse of
phenolic compounds originated from broccoli and apple. Finally, broccoli microgreens-apple
juice has a high content of phenolic compounds and good antioxidant properties, so it can be
considered as a potentially functional beverage, but future research that includes additional in
vitro and in vivo studies is necessary.",
publisher = "University of Belgrade, Faculty of Technology and Metallurgy",
journal = "Book of Abstracts of the International Conference on Biochemical Engineering and Biotechnology for Young Scientists",
title = "Broccoli microgreens-apple juice as novel beverages: total phenolic, flavonoids and antioxidant activity",
pages = "68",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_6856"
}
Belošević, S., Milinčić, D., Salević-Jelić, A., Marković, J., Lević, S., Pešić, M., Marjanović, S., Đorđević, V.,& Nedović, V.. (2023). Broccoli microgreens-apple juice as novel beverages: total phenolic, flavonoids and antioxidant activity. in Book of Abstracts of the International Conference on Biochemical Engineering and Biotechnology for Young Scientists
University of Belgrade, Faculty of Technology and Metallurgy., 68.
https://hdl.handle.net/21.15107/rcub_agrospace_6856
Belošević S, Milinčić D, Salević-Jelić A, Marković J, Lević S, Pešić M, Marjanović S, Đorđević V, Nedović V. Broccoli microgreens-apple juice as novel beverages: total phenolic, flavonoids and antioxidant activity. in Book of Abstracts of the International Conference on Biochemical Engineering and Biotechnology for Young Scientists. 2023;:68.
https://hdl.handle.net/21.15107/rcub_agrospace_6856 .
Belošević, Spasoje, Milinčić, Danijel, Salević-Jelić, Ana, Marković, Jovana, Lević, Steva, Pešić, Mirjana, Marjanović, Stefan, Đorđević, Verica, Nedović, Viktor, "Broccoli microgreens-apple juice as novel beverages: total phenolic, flavonoids and antioxidant activity" in Book of Abstracts of the International Conference on Biochemical Engineering and Biotechnology for Young Scientists (2023):68,
https://hdl.handle.net/21.15107/rcub_agrospace_6856 .

Characterization of amaranth (Amaranthus tricolor L.) microgreens juice encapsulated within inulin and maltodextrin

Belošević, Spasoje; Milinčić, Danijel; Salević-Jelić, Ana; Marković, Jovana; Lević, Steva; Pešić, Mirjana; Marjanović, Stefan; Đorđević, Verica; Nedović, Viktor

(University of Belgrade, Faculty of Technology and Metallurgy, 2023)

TY  - CONF
AU  - Belošević, Spasoje
AU  - Milinčić, Danijel
AU  - Salević-Jelić, Ana
AU  - Marković, Jovana
AU  - Lević, Steva
AU  - Pešić, Mirjana
AU  - Marjanović, Stefan
AU  - Đorđević, Verica
AU  - Nedović, Viktor
PY  - 2023
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/6869
AB  - Amaranth microgreens represent a rich source of betalains and phenolic compounds,
which show a broad range of positive effects on human health. However, these
biocompounds are very sensitive and easily degraded, which often limits their application and
bioaccessibility. For the above reasons, natural extracts and juices are most often
encapsulated using different carriers, which protect and control the release of bioactive
compounds. The aim of this study was to encapsulate cold-pressed amaranth (Amaranthus
tricolor L.) microgreens juice using maltodextrin (AMD) and inulin (AIN) as carriers and to
investigate total phenolic content (TPC), total flavonoid content (TFC) and antioxidant
properties (ABTS•+ and FRAP) of obtained spray-dried powders. To the best of our
knowledge, this is the first report on the encapsulation of amaranth microgreens juice. Before
analysis, both powders were reconstituted in Milli-Q water (5% solutions) and analyzed using
well-known spectrophotometric methods. The results are expressed in mg equivalents (gallic
acid, quercetin, Trolox) per 100 g encapsulates. The obtained values for TPC and TFC for
AMD were 291.7 ± 3.0 mg GAE/100 g and 291.3 ± 2.5 mg QE/100 g, while values for AIN
were 356.9 ± 1.0 mg GAE/100 g and 289.6 ± 3.8 mg QE/100 g. The results of antioxidant
activity were as follows: 546.3 ± 12.6 mg TE/100 g (AMD) and 745.2 ± 3.1 mg TE/100 g
(AIN) for ABTS•+ and 713.3 ± 8.4 mg TE/100 g (AMD) and 905.1 ± 4.5 mg TE/100 g (AIN)
for FRAP. Finally, maltodextrin and inulin can be successfully used for the encapsulation of
bioactive compounds of amaranth microgreens. In addition, both powders show good
antioxidant properties and can be used in the food industry as potentially novel additives or
supplements.
PB  - University of Belgrade, Faculty of Technology and Metallurgy
C3  - Book of Abstracts of the International Conference on Biochemical Engineering and Biotechnology for Young Scientists
T1  - Characterization of amaranth (Amaranthus tricolor L.) microgreens juice encapsulated within inulin and maltodextrin
SP  - 69
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_6869
ER  - 
@conference{
author = "Belošević, Spasoje and Milinčić, Danijel and Salević-Jelić, Ana and Marković, Jovana and Lević, Steva and Pešić, Mirjana and Marjanović, Stefan and Đorđević, Verica and Nedović, Viktor",
year = "2023",
abstract = "Amaranth microgreens represent a rich source of betalains and phenolic compounds,
which show a broad range of positive effects on human health. However, these
biocompounds are very sensitive and easily degraded, which often limits their application and
bioaccessibility. For the above reasons, natural extracts and juices are most often
encapsulated using different carriers, which protect and control the release of bioactive
compounds. The aim of this study was to encapsulate cold-pressed amaranth (Amaranthus
tricolor L.) microgreens juice using maltodextrin (AMD) and inulin (AIN) as carriers and to
investigate total phenolic content (TPC), total flavonoid content (TFC) and antioxidant
properties (ABTS•+ and FRAP) of obtained spray-dried powders. To the best of our
knowledge, this is the first report on the encapsulation of amaranth microgreens juice. Before
analysis, both powders were reconstituted in Milli-Q water (5% solutions) and analyzed using
well-known spectrophotometric methods. The results are expressed in mg equivalents (gallic
acid, quercetin, Trolox) per 100 g encapsulates. The obtained values for TPC and TFC for
AMD were 291.7 ± 3.0 mg GAE/100 g and 291.3 ± 2.5 mg QE/100 g, while values for AIN
were 356.9 ± 1.0 mg GAE/100 g and 289.6 ± 3.8 mg QE/100 g. The results of antioxidant
activity were as follows: 546.3 ± 12.6 mg TE/100 g (AMD) and 745.2 ± 3.1 mg TE/100 g
(AIN) for ABTS•+ and 713.3 ± 8.4 mg TE/100 g (AMD) and 905.1 ± 4.5 mg TE/100 g (AIN)
for FRAP. Finally, maltodextrin and inulin can be successfully used for the encapsulation of
bioactive compounds of amaranth microgreens. In addition, both powders show good
antioxidant properties and can be used in the food industry as potentially novel additives or
supplements.",
publisher = "University of Belgrade, Faculty of Technology and Metallurgy",
journal = "Book of Abstracts of the International Conference on Biochemical Engineering and Biotechnology for Young Scientists",
title = "Characterization of amaranth (Amaranthus tricolor L.) microgreens juice encapsulated within inulin and maltodextrin",
pages = "69",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_6869"
}
Belošević, S., Milinčić, D., Salević-Jelić, A., Marković, J., Lević, S., Pešić, M., Marjanović, S., Đorđević, V.,& Nedović, V.. (2023). Characterization of amaranth (Amaranthus tricolor L.) microgreens juice encapsulated within inulin and maltodextrin. in Book of Abstracts of the International Conference on Biochemical Engineering and Biotechnology for Young Scientists
University of Belgrade, Faculty of Technology and Metallurgy., 69.
https://hdl.handle.net/21.15107/rcub_agrospace_6869
Belošević S, Milinčić D, Salević-Jelić A, Marković J, Lević S, Pešić M, Marjanović S, Đorđević V, Nedović V. Characterization of amaranth (Amaranthus tricolor L.) microgreens juice encapsulated within inulin and maltodextrin. in Book of Abstracts of the International Conference on Biochemical Engineering and Biotechnology for Young Scientists. 2023;:69.
https://hdl.handle.net/21.15107/rcub_agrospace_6869 .
Belošević, Spasoje, Milinčić, Danijel, Salević-Jelić, Ana, Marković, Jovana, Lević, Steva, Pešić, Mirjana, Marjanović, Stefan, Đorđević, Verica, Nedović, Viktor, "Characterization of amaranth (Amaranthus tricolor L.) microgreens juice encapsulated within inulin and maltodextrin" in Book of Abstracts of the International Conference on Biochemical Engineering and Biotechnology for Young Scientists (2023):69,
https://hdl.handle.net/21.15107/rcub_agrospace_6869 .

Heat treatment effect on tocopherols, total phenolics and fatty acids in table olives (Olea europaea L.)

Mihajlović, Dragana; Čolić, Slavica; Marković, Jovana; Perišić, Dejana; Rajić, Jasmina; Premović, Tamara; Rabrenović, Biljana

(2023)

TY  - JOUR
AU  - Mihajlović, Dragana
AU  - Čolić, Slavica
AU  - Marković, Jovana
AU  - Perišić, Dejana
AU  - Rajić, Jasmina
AU  - Premović, Tamara
AU  - Rabrenović, Biljana
PY  - 2023
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/6330
AB  - The olive fruits are rich source of oil, vitamins, minerals, organic acids and pigments. The fruits contain high level of bioactive compounds. The aim of this study was to examine the effect of heat treatment on tocopherols, total phenolics and antioxidant activity in green and black olives, as well as their fatty acid composition. The instrumental methods used in this experiment were high performance liquid chromatography (HPLC), gas chromatography with flame ionization detection (GC/FID) and spectrophotometric methods. The results revealed that the β+γ-tocopherols content after the heat treatment had the biggest reduction, which was 68.4% for green and 80.2% for black olives. Also, a significant loss of total phenolic content was observed after heat treatment in green and black olives by 18.6% and 18.4%, respectively, as well as antioxidant activity (decrease up to 28.1%). The most abundant fatty acids in green and black olives were oleic (C18:1), palmitic (C16:0) and linoleic acid (C18:2). The changes in fatty acids composition during the heat treatment occurred mostly at the level of polyunsaturated fatty acids, especially linolenic acid (C18:3) in black olives had the significant reduction (by 57.4%) in relation to the initial quantity. © 2023,Notulae Botanicae Horti Agrobotanici Cluj-Napoca. All Rights Reserved.
T2  - Notulae Botanicae Horti Agrobotanici Cluj-Napoca
T2  - Notulae Botanicae Horti Agrobotanici Cluj-Napoca
T1  - Heat treatment effect on tocopherols, total phenolics and fatty acids in table olives (Olea europaea L.)
IS  - 1
VL  - 51
DO  - 10.15835/nbha51113029
ER  - 
@article{
author = "Mihajlović, Dragana and Čolić, Slavica and Marković, Jovana and Perišić, Dejana and Rajić, Jasmina and Premović, Tamara and Rabrenović, Biljana",
year = "2023",
abstract = "The olive fruits are rich source of oil, vitamins, minerals, organic acids and pigments. The fruits contain high level of bioactive compounds. The aim of this study was to examine the effect of heat treatment on tocopherols, total phenolics and antioxidant activity in green and black olives, as well as their fatty acid composition. The instrumental methods used in this experiment were high performance liquid chromatography (HPLC), gas chromatography with flame ionization detection (GC/FID) and spectrophotometric methods. The results revealed that the β+γ-tocopherols content after the heat treatment had the biggest reduction, which was 68.4% for green and 80.2% for black olives. Also, a significant loss of total phenolic content was observed after heat treatment in green and black olives by 18.6% and 18.4%, respectively, as well as antioxidant activity (decrease up to 28.1%). The most abundant fatty acids in green and black olives were oleic (C18:1), palmitic (C16:0) and linoleic acid (C18:2). The changes in fatty acids composition during the heat treatment occurred mostly at the level of polyunsaturated fatty acids, especially linolenic acid (C18:3) in black olives had the significant reduction (by 57.4%) in relation to the initial quantity. © 2023,Notulae Botanicae Horti Agrobotanici Cluj-Napoca. All Rights Reserved.",
journal = "Notulae Botanicae Horti Agrobotanici Cluj-Napoca, Notulae Botanicae Horti Agrobotanici Cluj-Napoca",
title = "Heat treatment effect on tocopherols, total phenolics and fatty acids in table olives (Olea europaea L.)",
number = "1",
volume = "51",
doi = "10.15835/nbha51113029"
}
Mihajlović, D., Čolić, S., Marković, J., Perišić, D., Rajić, J., Premović, T.,& Rabrenović, B.. (2023). Heat treatment effect on tocopherols, total phenolics and fatty acids in table olives (Olea europaea L.). in Notulae Botanicae Horti Agrobotanici Cluj-Napoca, 51(1).
https://doi.org/10.15835/nbha51113029
Mihajlović D, Čolić S, Marković J, Perišić D, Rajić J, Premović T, Rabrenović B. Heat treatment effect on tocopherols, total phenolics and fatty acids in table olives (Olea europaea L.). in Notulae Botanicae Horti Agrobotanici Cluj-Napoca. 2023;51(1).
doi:10.15835/nbha51113029 .
Mihajlović, Dragana, Čolić, Slavica, Marković, Jovana, Perišić, Dejana, Rajić, Jasmina, Premović, Tamara, Rabrenović, Biljana, "Heat treatment effect on tocopherols, total phenolics and fatty acids in table olives (Olea europaea L.)" in Notulae Botanicae Horti Agrobotanici Cluj-Napoca, 51, no. 1 (2023),
https://doi.org/10.15835/nbha51113029 . .
1

The possibility of using horseradish leaves pomace in the food industry

Marković, Jovana; Nedović, Viktor; Salević-Jelić, Ana; Pejić, Lazar; Mihajlović, Dragana

(University of Belgrade - Faculty of Agriculture, 2023)

TY  - CONF
AU  - Marković, Jovana
AU  - Nedović, Viktor
AU  - Salević-Jelić, Ana
AU  - Pejić, Lazar
AU  - Mihajlović, Dragana
PY  - 2023
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/6864
AB  - Horseradish is a plant that belongs to the Brassicaceae family and is native to
southeastern Europe and western Asia. It is cultivated for its succulent and spicy root, which
is used as a seasoning for meat, soups, seafood, etc. The horseradish root has a much higher
culinary value than the horseradish leaf, which is usually discarded with the rest of the aboveground
biomass and has no use in the food industry. However, the horseradish leaf can be
used in the diet in the form of salad or in the preparation of various dishes, to which it gives a
characteristic spicy flavor. The biological activity of horseradish is expressed as antimicrobial,
insecticidal, anticoagulant, and gastro-protective effects of isothiocyanates, compounds formed
by the hydrolysis of glucosinolates under the action of the enzyme myrosinase. In addition, the
horseradish leaf is rich in vitamin C, polyphenols, and flavonoids, which is why it is desirable
to press it to obtain juice that can be used in the food industry. Moreover, pressing leaves
behind a pomace that could also potentially be used in the food industry. Therefore, this
research aimed to analyze the content of phenolic compounds and the antioxidant potential of
the horseradish leaves pomace, to achieve the full utilization of the plant and reduce biomass
loss. Total phenolic content (TPC), total flavonoid content (TFC), total phenolic acid content
(TPAC), and antioxidant activity (DPPH, ABTS, and FRAP methods) were determined by
standard spectrophotometric methods. The results showed that the quantitative content of total
phenolic compounds, flavonoids, and phenolic acids in horseradish leaves pomace, after pressing
and obtaining juice, was 7825.50 ± 749.20 mg GAE/kg FW (fresh weight - FW), 9460.00 ±
138.60 mg CE/ kg FW and 8905.50 ± 336.90 mg CAE/kg FW, respectively. In the analysis of
antioxidant activity, it was found that all three methods indicate the presence of antioxidant
potential of horseradish leaves pomace, namely: 9.00 ± 0.70 mmol TE/kg FW (DPPH), 42.30
± 3.80 mmol TE/kg FW (ABTS ) and 17.30 ± 0.60 mmol TE/kg FW (FRAP). Based on
the obtained results, it can be concluded that horseradish leaves pomace contains significant
amounts of polyphenolic compounds and high antioxidant potential, making it a suitable raw
material for the food industry, both from the point of view of waste prevention and potential
enrichment of food products to which it is added (as a seasoning for salads and dehydrated
soups, etc.).
PB  - University of Belgrade - Faculty of Agriculture
C3  - Book of Abstracts of the 6th International Symposium on Agricultural Engineering (ISAE 2023)
T1  - The possibility of using horseradish leaves pomace in the food industry
SP  - 44
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_6864
ER  - 
@conference{
author = "Marković, Jovana and Nedović, Viktor and Salević-Jelić, Ana and Pejić, Lazar and Mihajlović, Dragana",
year = "2023",
abstract = "Horseradish is a plant that belongs to the Brassicaceae family and is native to
southeastern Europe and western Asia. It is cultivated for its succulent and spicy root, which
is used as a seasoning for meat, soups, seafood, etc. The horseradish root has a much higher
culinary value than the horseradish leaf, which is usually discarded with the rest of the aboveground
biomass and has no use in the food industry. However, the horseradish leaf can be
used in the diet in the form of salad or in the preparation of various dishes, to which it gives a
characteristic spicy flavor. The biological activity of horseradish is expressed as antimicrobial,
insecticidal, anticoagulant, and gastro-protective effects of isothiocyanates, compounds formed
by the hydrolysis of glucosinolates under the action of the enzyme myrosinase. In addition, the
horseradish leaf is rich in vitamin C, polyphenols, and flavonoids, which is why it is desirable
to press it to obtain juice that can be used in the food industry. Moreover, pressing leaves
behind a pomace that could also potentially be used in the food industry. Therefore, this
research aimed to analyze the content of phenolic compounds and the antioxidant potential of
the horseradish leaves pomace, to achieve the full utilization of the plant and reduce biomass
loss. Total phenolic content (TPC), total flavonoid content (TFC), total phenolic acid content
(TPAC), and antioxidant activity (DPPH, ABTS, and FRAP methods) were determined by
standard spectrophotometric methods. The results showed that the quantitative content of total
phenolic compounds, flavonoids, and phenolic acids in horseradish leaves pomace, after pressing
and obtaining juice, was 7825.50 ± 749.20 mg GAE/kg FW (fresh weight - FW), 9460.00 ±
138.60 mg CE/ kg FW and 8905.50 ± 336.90 mg CAE/kg FW, respectively. In the analysis of
antioxidant activity, it was found that all three methods indicate the presence of antioxidant
potential of horseradish leaves pomace, namely: 9.00 ± 0.70 mmol TE/kg FW (DPPH), 42.30
± 3.80 mmol TE/kg FW (ABTS ) and 17.30 ± 0.60 mmol TE/kg FW (FRAP). Based on
the obtained results, it can be concluded that horseradish leaves pomace contains significant
amounts of polyphenolic compounds and high antioxidant potential, making it a suitable raw
material for the food industry, both from the point of view of waste prevention and potential
enrichment of food products to which it is added (as a seasoning for salads and dehydrated
soups, etc.).",
publisher = "University of Belgrade - Faculty of Agriculture",
journal = "Book of Abstracts of the 6th International Symposium on Agricultural Engineering (ISAE 2023)",
title = "The possibility of using horseradish leaves pomace in the food industry",
pages = "44",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_6864"
}
Marković, J., Nedović, V., Salević-Jelić, A., Pejić, L.,& Mihajlović, D.. (2023). The possibility of using horseradish leaves pomace in the food industry. in Book of Abstracts of the 6th International Symposium on Agricultural Engineering (ISAE 2023)
University of Belgrade - Faculty of Agriculture., 44.
https://hdl.handle.net/21.15107/rcub_agrospace_6864
Marković J, Nedović V, Salević-Jelić A, Pejić L, Mihajlović D. The possibility of using horseradish leaves pomace in the food industry. in Book of Abstracts of the 6th International Symposium on Agricultural Engineering (ISAE 2023). 2023;:44.
https://hdl.handle.net/21.15107/rcub_agrospace_6864 .
Marković, Jovana, Nedović, Viktor, Salević-Jelić, Ana, Pejić, Lazar, Mihajlović, Dragana, "The possibility of using horseradish leaves pomace in the food industry" in Book of Abstracts of the 6th International Symposium on Agricultural Engineering (ISAE 2023) (2023):44,
https://hdl.handle.net/21.15107/rcub_agrospace_6864 .

Antioxidant potential and phenolics content of horseradish root juice encapsulated within different carbohydrate matrices

Marković, Jovana; Nedović, Viktor; Salević-Jelić, Ana; Lević, Steva; Đorđević, Verica; Belošević, Spasoje; Mihajlović, Dragana

(University of Belgrade, Faculty of technology and metallurgy, 2023)

TY  - CONF
AU  - Marković, Jovana
AU  - Nedović, Viktor
AU  - Salević-Jelić, Ana
AU  - Lević, Steva
AU  - Đorđević, Verica
AU  - Belošević, Spasoje
AU  - Mihajlović, Dragana
PY  - 2023
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/6866
AB  - Horseradish is a plant grown for its succulent and spicy root, which presents a rich
source of antioxidants such as phenolic compounds, vitamin C, and isothiocyanates. Due to
its antioxidant properties, cold-pressed horseradish root juice could be an active ingredient in
functional foods. However, fresh juices undergo enzymatic and microbiological changes, so it
is necessary to preserve them. One of the approaches commonly used for this purpose is
encapsulation by spray-drying, which involves the entrapping of bioactive components within
carrier agents. This ensures the protection of the bioactive component from undesirable
external factors and its controlled release. Many studies have shown that the use of a
combination of maltodextrin and hydrocolloids as encapsulation carriers results in highquality
encapsulates. So, the aim of this study was the encapsulation of horseradish root juice
and the characterization of the obtained encapsulates as potential antioxidants in food
production.
Maltodextrin/guar gum (MD/GG) and maltodextrin/gum Arabic (MD/GA) were used
as carriers to encapsulate horseradish root juice by spray-drying. Total phenolic, flavonoid,
and phenolic acid contents (TPC, TFC, and TPAC, respectively) and antioxidant activity
(DPPH, ABTS, and FRAP methods) were determined by standard spectrophotometric
methods.
MD/GG and MD/GA with encapsulated horseradish root juice contained 1628 and
1568 mg gallic acid equivalents/100 g, respectively, of TPC; 264 and 253 mg catechin
equivalents/100 g, respectively, of TFC; and 3272 and 3397 mg caffeic acid equivalents/100
g, respectively, of TPAC. Results for the antioxidant activity (expressed as mmol Trolox
equivalents/100 g) of MD/GG and MD/GA were 0.8 and 0.7, respectively (DPPH); 6.9 and
7.6, respectively (ABTS); and 8.8 and 8.6, respectively (FRAP).
In conclusion, horseradish root juice encapsulated within carbohydrate biopolymers
contained significant amounts of phenolic compounds and high antioxidant activity, which
makes it a potential replacer for synthetic antioxidants in the food industry and opens the
possibility for further research on this topic.
PB  - University of Belgrade, Faculty of technology and metallurgy
C3  - Book of Abstracts of the International Conference on Biochemical Engineering and Biotechnology for Young Scientists
T1  - Antioxidant potential and phenolics content of horseradish root juice encapsulated within different carbohydrate matrices
SP  - 52
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_6866
ER  - 
@conference{
author = "Marković, Jovana and Nedović, Viktor and Salević-Jelić, Ana and Lević, Steva and Đorđević, Verica and Belošević, Spasoje and Mihajlović, Dragana",
year = "2023",
abstract = "Horseradish is a plant grown for its succulent and spicy root, which presents a rich
source of antioxidants such as phenolic compounds, vitamin C, and isothiocyanates. Due to
its antioxidant properties, cold-pressed horseradish root juice could be an active ingredient in
functional foods. However, fresh juices undergo enzymatic and microbiological changes, so it
is necessary to preserve them. One of the approaches commonly used for this purpose is
encapsulation by spray-drying, which involves the entrapping of bioactive components within
carrier agents. This ensures the protection of the bioactive component from undesirable
external factors and its controlled release. Many studies have shown that the use of a
combination of maltodextrin and hydrocolloids as encapsulation carriers results in highquality
encapsulates. So, the aim of this study was the encapsulation of horseradish root juice
and the characterization of the obtained encapsulates as potential antioxidants in food
production.
Maltodextrin/guar gum (MD/GG) and maltodextrin/gum Arabic (MD/GA) were used
as carriers to encapsulate horseradish root juice by spray-drying. Total phenolic, flavonoid,
and phenolic acid contents (TPC, TFC, and TPAC, respectively) and antioxidant activity
(DPPH, ABTS, and FRAP methods) were determined by standard spectrophotometric
methods.
MD/GG and MD/GA with encapsulated horseradish root juice contained 1628 and
1568 mg gallic acid equivalents/100 g, respectively, of TPC; 264 and 253 mg catechin
equivalents/100 g, respectively, of TFC; and 3272 and 3397 mg caffeic acid equivalents/100
g, respectively, of TPAC. Results for the antioxidant activity (expressed as mmol Trolox
equivalents/100 g) of MD/GG and MD/GA were 0.8 and 0.7, respectively (DPPH); 6.9 and
7.6, respectively (ABTS); and 8.8 and 8.6, respectively (FRAP).
In conclusion, horseradish root juice encapsulated within carbohydrate biopolymers
contained significant amounts of phenolic compounds and high antioxidant activity, which
makes it a potential replacer for synthetic antioxidants in the food industry and opens the
possibility for further research on this topic.",
publisher = "University of Belgrade, Faculty of technology and metallurgy",
journal = "Book of Abstracts of the International Conference on Biochemical Engineering and Biotechnology for Young Scientists",
title = "Antioxidant potential and phenolics content of horseradish root juice encapsulated within different carbohydrate matrices",
pages = "52",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_6866"
}
Marković, J., Nedović, V., Salević-Jelić, A., Lević, S., Đorđević, V., Belošević, S.,& Mihajlović, D.. (2023). Antioxidant potential and phenolics content of horseradish root juice encapsulated within different carbohydrate matrices. in Book of Abstracts of the International Conference on Biochemical Engineering and Biotechnology for Young Scientists
University of Belgrade, Faculty of technology and metallurgy., 52.
https://hdl.handle.net/21.15107/rcub_agrospace_6866
Marković J, Nedović V, Salević-Jelić A, Lević S, Đorđević V, Belošević S, Mihajlović D. Antioxidant potential and phenolics content of horseradish root juice encapsulated within different carbohydrate matrices. in Book of Abstracts of the International Conference on Biochemical Engineering and Biotechnology for Young Scientists. 2023;:52.
https://hdl.handle.net/21.15107/rcub_agrospace_6866 .
Marković, Jovana, Nedović, Viktor, Salević-Jelić, Ana, Lević, Steva, Đorđević, Verica, Belošević, Spasoje, Mihajlović, Dragana, "Antioxidant potential and phenolics content of horseradish root juice encapsulated within different carbohydrate matrices" in Book of Abstracts of the International Conference on Biochemical Engineering and Biotechnology for Young Scientists (2023):52,
https://hdl.handle.net/21.15107/rcub_agrospace_6866 .

Physicochemical characterization of spray-dried horseradish root juice encapsulated within maltodextrin/alginate

Marković, Jovana; Mihajlović, Dragana; Salević-Jelić, Ana; Lević, Steva; Đorđević, Verica; Belošević, Spasoje; Nedović, Viktor

(University of Belgrade, Faculty of Technology and Metallurgy, 2023)

TY  - CONF
AU  - Marković, Jovana
AU  - Mihajlović, Dragana
AU  - Salević-Jelić, Ana
AU  - Lević, Steva
AU  - Đorđević, Verica
AU  - Belošević, Spasoje
AU  - Nedović, Viktor
PY  - 2023
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/6867
AB  - Spray-drying is one of the widely used techniques to extend the shelf-life and easier
handling of vegetable juices. However, the high temperatures in the spray-drying chamber
may cause the degradation of the bioactive components of the juices. Also, the enzyme
activity and sugar content of fresh juices can lead to difficulties in drying and resulting in
powders with unfavorable physicochemical properties. To overcome these problems, juices
can be encapsulated within various biopolymers. Carbohydrates, maltodextrin, and alginate
were used as carriers for the spray-drying encapsulation of bioactive components of various
plant juices and extracts. To our knowledge, there are no reported studies on the
encapsulation of horseradish root juice within these carriers. Therefore, this study aimed to
investigate the influence of the maltodextrin/alginate carrier mixture on the physicochemical
properties of the horseradish root juice preserved by the spray-drying encapsulation
technique.
Root juice powder without a carrier (C, control sample) and maltodextrin/alginate
encapsulates of root juice (MD/AL) were prepared by spray-drying. The powders were
analyzed using standard analytical methods to determine the moisture content, water activity,
hygroscopicity, oil holding capacity, bulk, and tapped density.
Moisture content, water activity, and hygroscopicity were lower in MD/AL (7.8%, 0.28, 22.9
g/100 g) than in C (10.2%, 0.32, 24.4 g/100 g). MD/AL had a higher oil holding capacity (1.4
g oil/g) compared to C (1.1 g oil/g). The values for bulk and tapped density were for MD/AL
0.5 and 0.7 g/cm3 and C 0.6 and 0.7 g/cm3, respectively.
Finally, the encapsulation of horseradish root juice in maltodextrin/alginate resulted in
powders with significantly better physicochemical properties than spray-dried horseradish
root juice without carrier. Based on this study, it can be concluded that the encapsulation
process has great potential for the preservation of vegetable juices and provides many
perspectives for further research and application in food products.
PB  - University of Belgrade, Faculty of Technology and Metallurgy
C3  - Book of Abstracts of the International Conference on Biochemical Engineering and Biotechnology for Young Scientists
T1  - Physicochemical characterization of spray-dried horseradish root juice encapsulated within maltodextrin/alginate
SP  - 53
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_6867
ER  - 
@conference{
author = "Marković, Jovana and Mihajlović, Dragana and Salević-Jelić, Ana and Lević, Steva and Đorđević, Verica and Belošević, Spasoje and Nedović, Viktor",
year = "2023",
abstract = "Spray-drying is one of the widely used techniques to extend the shelf-life and easier
handling of vegetable juices. However, the high temperatures in the spray-drying chamber
may cause the degradation of the bioactive components of the juices. Also, the enzyme
activity and sugar content of fresh juices can lead to difficulties in drying and resulting in
powders with unfavorable physicochemical properties. To overcome these problems, juices
can be encapsulated within various biopolymers. Carbohydrates, maltodextrin, and alginate
were used as carriers for the spray-drying encapsulation of bioactive components of various
plant juices and extracts. To our knowledge, there are no reported studies on the
encapsulation of horseradish root juice within these carriers. Therefore, this study aimed to
investigate the influence of the maltodextrin/alginate carrier mixture on the physicochemical
properties of the horseradish root juice preserved by the spray-drying encapsulation
technique.
Root juice powder without a carrier (C, control sample) and maltodextrin/alginate
encapsulates of root juice (MD/AL) were prepared by spray-drying. The powders were
analyzed using standard analytical methods to determine the moisture content, water activity,
hygroscopicity, oil holding capacity, bulk, and tapped density.
Moisture content, water activity, and hygroscopicity were lower in MD/AL (7.8%, 0.28, 22.9
g/100 g) than in C (10.2%, 0.32, 24.4 g/100 g). MD/AL had a higher oil holding capacity (1.4
g oil/g) compared to C (1.1 g oil/g). The values for bulk and tapped density were for MD/AL
0.5 and 0.7 g/cm3 and C 0.6 and 0.7 g/cm3, respectively.
Finally, the encapsulation of horseradish root juice in maltodextrin/alginate resulted in
powders with significantly better physicochemical properties than spray-dried horseradish
root juice without carrier. Based on this study, it can be concluded that the encapsulation
process has great potential for the preservation of vegetable juices and provides many
perspectives for further research and application in food products.",
publisher = "University of Belgrade, Faculty of Technology and Metallurgy",
journal = "Book of Abstracts of the International Conference on Biochemical Engineering and Biotechnology for Young Scientists",
title = "Physicochemical characterization of spray-dried horseradish root juice encapsulated within maltodextrin/alginate",
pages = "53",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_6867"
}
Marković, J., Mihajlović, D., Salević-Jelić, A., Lević, S., Đorđević, V., Belošević, S.,& Nedović, V.. (2023). Physicochemical characterization of spray-dried horseradish root juice encapsulated within maltodextrin/alginate. in Book of Abstracts of the International Conference on Biochemical Engineering and Biotechnology for Young Scientists
University of Belgrade, Faculty of Technology and Metallurgy., 53.
https://hdl.handle.net/21.15107/rcub_agrospace_6867
Marković J, Mihajlović D, Salević-Jelić A, Lević S, Đorđević V, Belošević S, Nedović V. Physicochemical characterization of spray-dried horseradish root juice encapsulated within maltodextrin/alginate. in Book of Abstracts of the International Conference on Biochemical Engineering and Biotechnology for Young Scientists. 2023;:53.
https://hdl.handle.net/21.15107/rcub_agrospace_6867 .
Marković, Jovana, Mihajlović, Dragana, Salević-Jelić, Ana, Lević, Steva, Đorđević, Verica, Belošević, Spasoje, Nedović, Viktor, "Physicochemical characterization of spray-dried horseradish root juice encapsulated within maltodextrin/alginate" in Book of Abstracts of the International Conference on Biochemical Engineering and Biotechnology for Young Scientists (2023):53,
https://hdl.handle.net/21.15107/rcub_agrospace_6867 .

Effect of different heat treatments on antioxidative activity in pumpkin (Cucurbita maxima)

Marković, Jovana; Mihajlović, Dragana; Mašković, Pavle; Banjac, Nebojša; Mašković, Jelena; Ivanović, Evica

(2022)

TY  - GEN
AU  - Marković, Jovana
AU  - Mihajlović, Dragana
AU  - Mašković, Pavle
AU  - Banjac, Nebojša
AU  - Mašković, Jelena
AU  - Ivanović, Evica
PY  - 2022
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/6893
AB  - A pumpkin (Cucurbita maxima) contains significant amounts of diverse phytochemicals, including polyphenols (flavonoids, tannins) and carotenoids. Some of these compounds are known antioxidants, capable of neutralizing harmful biological free radicals, thus protecting health of living organisms. However, the numerous food-processing technologies decrease the amounts of naturally occurring antioxidants, due to enzymatic and nonenzymatic oxidation processes. The aim of this research was to determine the influence of different heat treatments (cooking, baking in conventional and microwave oven) on the antioxidant activity of phytochemicals present in the pumpkin.
The antioxidant activity was quantified spectrophotometrically, at the specific wavelengths, utilizing standard colorimetric reactions. The total antioxidant capacity of the analyzed samples was determined by phosphomolybdate method using ascorbic acid as a standard [1]. Antioxidant activity was measured by the inhibition of lipid peroxidation (FTC) [2] and free radical scavenging (DPPH⦁ [3], hydroxyl [4] and ABTS radical cation [5]) methods.
The highest total antioxidant capacity was found in a raw pumpkin sample (5.58±0.33 mg AAE/g), while the lowest value was found in a sample of pumpkin baked in conventional oven (2.88±0.32 mg AAE/g). Inhibition activity against lipid peroxidation (IC50) was the highest in raw pumpkin (16.72±0.73 µg/ml), and the lowest one was in conventional baked pumpkin (8.49±0.31 µg/ml). Free radical scavenging activity measured by DPPH and hydroxyl radicals (IC50) were the highest in raw sample (35.67±1.99 µg/ml) and (19.46±1.60 µg/ml), respectively, while the lowest values were in conventional baked pumpkin (15.68±1.32 µg/ml) and (9.69±2.01 µg/ml), respectively. Antioxidant activity measured by ABTS radical cation scavenging (IC50) was the highest in raw sample (41.63±0.61 µg/ml) and the lowest value was found in a sample baked in conventional oven (21.32±0.45 µg/ml).
The results showed that different heat treatments significantly affected on antioxidant activity, especially baking in conventional way, what makes it the least favorable process in this study.
T2  - Book of abstracts of 1 st European Symposium on Phytochemicals in Medicine and Food (1-EuSPMF)
T1  - Effect of different heat treatments on antioxidative activity in pumpkin (Cucurbita maxima)
SP  - 72
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_6893
ER  - 
@misc{
author = "Marković, Jovana and Mihajlović, Dragana and Mašković, Pavle and Banjac, Nebojša and Mašković, Jelena and Ivanović, Evica",
year = "2022",
abstract = "A pumpkin (Cucurbita maxima) contains significant amounts of diverse phytochemicals, including polyphenols (flavonoids, tannins) and carotenoids. Some of these compounds are known antioxidants, capable of neutralizing harmful biological free radicals, thus protecting health of living organisms. However, the numerous food-processing technologies decrease the amounts of naturally occurring antioxidants, due to enzymatic and nonenzymatic oxidation processes. The aim of this research was to determine the influence of different heat treatments (cooking, baking in conventional and microwave oven) on the antioxidant activity of phytochemicals present in the pumpkin.
The antioxidant activity was quantified spectrophotometrically, at the specific wavelengths, utilizing standard colorimetric reactions. The total antioxidant capacity of the analyzed samples was determined by phosphomolybdate method using ascorbic acid as a standard [1]. Antioxidant activity was measured by the inhibition of lipid peroxidation (FTC) [2] and free radical scavenging (DPPH⦁ [3], hydroxyl [4] and ABTS radical cation [5]) methods.
The highest total antioxidant capacity was found in a raw pumpkin sample (5.58±0.33 mg AAE/g), while the lowest value was found in a sample of pumpkin baked in conventional oven (2.88±0.32 mg AAE/g). Inhibition activity against lipid peroxidation (IC50) was the highest in raw pumpkin (16.72±0.73 µg/ml), and the lowest one was in conventional baked pumpkin (8.49±0.31 µg/ml). Free radical scavenging activity measured by DPPH and hydroxyl radicals (IC50) were the highest in raw sample (35.67±1.99 µg/ml) and (19.46±1.60 µg/ml), respectively, while the lowest values were in conventional baked pumpkin (15.68±1.32 µg/ml) and (9.69±2.01 µg/ml), respectively. Antioxidant activity measured by ABTS radical cation scavenging (IC50) was the highest in raw sample (41.63±0.61 µg/ml) and the lowest value was found in a sample baked in conventional oven (21.32±0.45 µg/ml).
The results showed that different heat treatments significantly affected on antioxidant activity, especially baking in conventional way, what makes it the least favorable process in this study.",
journal = "Book of abstracts of 1 st European Symposium on Phytochemicals in Medicine and Food (1-EuSPMF)",
title = "Effect of different heat treatments on antioxidative activity in pumpkin (Cucurbita maxima)",
pages = "72",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_6893"
}
Marković, J., Mihajlović, D., Mašković, P., Banjac, N., Mašković, J.,& Ivanović, E.. (2022). Effect of different heat treatments on antioxidative activity in pumpkin (Cucurbita maxima). in Book of abstracts of 1 st European Symposium on Phytochemicals in Medicine and Food (1-EuSPMF), 72.
https://hdl.handle.net/21.15107/rcub_agrospace_6893
Marković J, Mihajlović D, Mašković P, Banjac N, Mašković J, Ivanović E. Effect of different heat treatments on antioxidative activity in pumpkin (Cucurbita maxima). in Book of abstracts of 1 st European Symposium on Phytochemicals in Medicine and Food (1-EuSPMF). 2022;:72.
https://hdl.handle.net/21.15107/rcub_agrospace_6893 .
Marković, Jovana, Mihajlović, Dragana, Mašković, Pavle, Banjac, Nebojša, Mašković, Jelena, Ivanović, Evica, "Effect of different heat treatments on antioxidative activity in pumpkin (Cucurbita maxima)" in Book of abstracts of 1 st European Symposium on Phytochemicals in Medicine and Food (1-EuSPMF) (2022):72,
https://hdl.handle.net/21.15107/rcub_agrospace_6893 .

The influence of cutting thickness, shape and moisture content on oil absorption during potato frying [Uticaj debljine listova, oblika i sadržaja vlage krompira na apsorpciju ulja tokom prženja]

Paunović, Dragana M.; Marković, Jovana M.; Stričević, Lazar P.; Vujasinović, Vesna B.; Stevanović, Milica S.; Ćirković, Aleksandra L.; Rabrenović, Biljana B.

(University of Belgrade Faculty of Agriculture, 2021)

TY  - JOUR
AU  - Paunović, Dragana M.
AU  - Marković, Jovana M.
AU  - Stričević, Lazar P.
AU  - Vujasinović, Vesna B.
AU  - Stevanović, Milica S.
AU  - Ćirković, Aleksandra L.
AU  - Rabrenović, Biljana B.
PY  - 2021
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5853
AB  - Potato chips and French fries are products which are often used in the human diet. The aim of this study was to investigate the influence of cutting thickness, shape and moisture content on palm olein uptake, as well as the quality of the palm olein during the production of fried potatoes. Blanching operation was conducted in water for 3 minutes at a temperature of 85oC, while the frying process was conducted in palm olein for 3 minutes at a temperature of 165oC. The peroxide value and free fatty acid content (% oleic acid) were determined by standard analytical methods. The oil content in samples was determined by the standard Soxhlet extraction (the reference method). The results showed that the potato chips had approximately four times more oil uptake compared to potato sticks. The oil content was significantly lower in blanched potato slices (by 43.3%) but significantly higher in blanched potato sticks (by 53.5%) compared to unblanched samples. The analyzed quality parameters of palm olein were within the allowable value range. Based on the results obtained in this study, it can be concluded that the thickness, surface area and moisture content of the potato had a significant effect on oil uptake.
PB  - University of Belgrade Faculty of Agriculture
T2  - Journal of Agricultural Sciences (Belgrade)
T1  - The influence of cutting thickness, shape and moisture content on oil absorption during potato frying [Uticaj debljine listova, oblika i sadržaja vlage krompira na apsorpciju ulja tokom prženja]
EP  - 74
IS  - 1
SP  - 67
VL  - 66
DO  - 10.2298/JAS2101067P
ER  - 
@article{
author = "Paunović, Dragana M. and Marković, Jovana M. and Stričević, Lazar P. and Vujasinović, Vesna B. and Stevanović, Milica S. and Ćirković, Aleksandra L. and Rabrenović, Biljana B.",
year = "2021",
abstract = "Potato chips and French fries are products which are often used in the human diet. The aim of this study was to investigate the influence of cutting thickness, shape and moisture content on palm olein uptake, as well as the quality of the palm olein during the production of fried potatoes. Blanching operation was conducted in water for 3 minutes at a temperature of 85oC, while the frying process was conducted in palm olein for 3 minutes at a temperature of 165oC. The peroxide value and free fatty acid content (% oleic acid) were determined by standard analytical methods. The oil content in samples was determined by the standard Soxhlet extraction (the reference method). The results showed that the potato chips had approximately four times more oil uptake compared to potato sticks. The oil content was significantly lower in blanched potato slices (by 43.3%) but significantly higher in blanched potato sticks (by 53.5%) compared to unblanched samples. The analyzed quality parameters of palm olein were within the allowable value range. Based on the results obtained in this study, it can be concluded that the thickness, surface area and moisture content of the potato had a significant effect on oil uptake.",
publisher = "University of Belgrade Faculty of Agriculture",
journal = "Journal of Agricultural Sciences (Belgrade)",
title = "The influence of cutting thickness, shape and moisture content on oil absorption during potato frying [Uticaj debljine listova, oblika i sadržaja vlage krompira na apsorpciju ulja tokom prženja]",
pages = "74-67",
number = "1",
volume = "66",
doi = "10.2298/JAS2101067P"
}
Paunović, D. M., Marković, J. M., Stričević, L. P., Vujasinović, V. B., Stevanović, M. S., Ćirković, A. L.,& Rabrenović, B. B.. (2021). The influence of cutting thickness, shape and moisture content on oil absorption during potato frying [Uticaj debljine listova, oblika i sadržaja vlage krompira na apsorpciju ulja tokom prženja]. in Journal of Agricultural Sciences (Belgrade)
University of Belgrade Faculty of Agriculture., 66(1), 67-74.
https://doi.org/10.2298/JAS2101067P
Paunović DM, Marković JM, Stričević LP, Vujasinović VB, Stevanović MS, Ćirković AL, Rabrenović BB. The influence of cutting thickness, shape and moisture content on oil absorption during potato frying [Uticaj debljine listova, oblika i sadržaja vlage krompira na apsorpciju ulja tokom prženja]. in Journal of Agricultural Sciences (Belgrade). 2021;66(1):67-74.
doi:10.2298/JAS2101067P .
Paunović, Dragana M., Marković, Jovana M., Stričević, Lazar P., Vujasinović, Vesna B., Stevanović, Milica S., Ćirković, Aleksandra L., Rabrenović, Biljana B., "The influence of cutting thickness, shape and moisture content on oil absorption during potato frying [Uticaj debljine listova, oblika i sadržaja vlage krompira na apsorpciju ulja tokom prženja]" in Journal of Agricultural Sciences (Belgrade), 66, no. 1 (2021):67-74,
https://doi.org/10.2298/JAS2101067P . .
1
1

The influence of different heat treatment on the vitamin C content in pepper (Capsicum annuum L.)

Paunović, Dragana; Marković, Jovana; Rabrenović, Biljana; Laličić-Petronijević, Jovanka; Rajić, Jasmina; Petrović, Tanja

(University of Belgrade, 2021)

TY  - GEN
AU  - Paunović, Dragana
AU  - Marković, Jovana
AU  - Rabrenović, Biljana
AU  - Laličić-Petronijević, Jovanka
AU  - Rajić, Jasmina
AU  - Petrović, Tanja
PY  - 2021
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/6888
AB  - The pepper (Capsicum annuum L.)  is vegetables commonly used in the human diet. Due to its exceptional sensory and nutritional properties, it is readily consumed both fresh and processed into various ready meals, pickling, salads, dried spices, etc. There are a large number of cultivars of peppers that differ in shape, size, color, aroma, degree of hotness, etc. The pepper is rich source of carotenoids, vitamins, mineral matter, carbohydrates, organic acids and aromatic components. Numerous bioactive compounds found in pepper, such as vitamin C (ascorbic acid), contribute to its high antioxidant activity. 
The aim of this study was to determine the vitamin C content after different heat treatments commonly used in industrial processing of peppers, as well as in the household. The domestic cultivar “Elephant ear” was subjected to tree different thermal treatments: 1) cooked in closed and opened dish, 2) roasting in microwave oven and on the hob, and 3) frying in sunflower oil, during 15 minutes. The content of vitamin C was determined using indirect iodimetry method. The results were expressed in mg/100 g dry basis (d.b.) and compared with the fresh pepper used as a control. The content of vitamin C in the fresh sample was 1295.38 mg/100 g d.b., while in the peppers cooked in closed and opened dish its value was 1007.58 and 615.17 mg/100 g d.b., respectively. In the pepper threated in microwave oven and on the hob, the content of vitamin C was 494.51 and 1201.40 mg/100 g d.b., respectively, while its value in the fried sample was 443.65 mg/100 g d.b. The highest loss of vitamin C was observed after frying treatment (65.75%), while the lowest loss was recorded in the sample roasting on the hob (7.26%), in relation to the initial amount in unprocessed pepper. Also, the results of vitamin C content indicate that its loss was higher when the thermal treatment was performed in an opened then in the closed dish probably due to the increased presence of oxygen that may intensify oxidation.  However, the obtained quantity of vitamin C per mg/100 dry basis of the tested samples is more than enough to ensure daily intake of vitamin C and avoid its deficiency in human diet.
PB  - University of Belgrade
T2  - Book of Abstracts of 2nd International UNIfood Conference
T1  - The influence of different heat treatment on the vitamin C content in pepper (Capsicum annuum L.)
SP  - 180
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_6888
ER  - 
@misc{
author = "Paunović, Dragana and Marković, Jovana and Rabrenović, Biljana and Laličić-Petronijević, Jovanka and Rajić, Jasmina and Petrović, Tanja",
year = "2021",
abstract = "The pepper (Capsicum annuum L.)  is vegetables commonly used in the human diet. Due to its exceptional sensory and nutritional properties, it is readily consumed both fresh and processed into various ready meals, pickling, salads, dried spices, etc. There are a large number of cultivars of peppers that differ in shape, size, color, aroma, degree of hotness, etc. The pepper is rich source of carotenoids, vitamins, mineral matter, carbohydrates, organic acids and aromatic components. Numerous bioactive compounds found in pepper, such as vitamin C (ascorbic acid), contribute to its high antioxidant activity. 
The aim of this study was to determine the vitamin C content after different heat treatments commonly used in industrial processing of peppers, as well as in the household. The domestic cultivar “Elephant ear” was subjected to tree different thermal treatments: 1) cooked in closed and opened dish, 2) roasting in microwave oven and on the hob, and 3) frying in sunflower oil, during 15 minutes. The content of vitamin C was determined using indirect iodimetry method. The results were expressed in mg/100 g dry basis (d.b.) and compared with the fresh pepper used as a control. The content of vitamin C in the fresh sample was 1295.38 mg/100 g d.b., while in the peppers cooked in closed and opened dish its value was 1007.58 and 615.17 mg/100 g d.b., respectively. In the pepper threated in microwave oven and on the hob, the content of vitamin C was 494.51 and 1201.40 mg/100 g d.b., respectively, while its value in the fried sample was 443.65 mg/100 g d.b. The highest loss of vitamin C was observed after frying treatment (65.75%), while the lowest loss was recorded in the sample roasting on the hob (7.26%), in relation to the initial amount in unprocessed pepper. Also, the results of vitamin C content indicate that its loss was higher when the thermal treatment was performed in an opened then in the closed dish probably due to the increased presence of oxygen that may intensify oxidation.  However, the obtained quantity of vitamin C per mg/100 dry basis of the tested samples is more than enough to ensure daily intake of vitamin C and avoid its deficiency in human diet.",
publisher = "University of Belgrade",
journal = "Book of Abstracts of 2nd International UNIfood Conference",
title = "The influence of different heat treatment on the vitamin C content in pepper (Capsicum annuum L.)",
pages = "180",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_6888"
}
Paunović, D., Marković, J., Rabrenović, B., Laličić-Petronijević, J., Rajić, J.,& Petrović, T.. (2021). The influence of different heat treatment on the vitamin C content in pepper (Capsicum annuum L.). in Book of Abstracts of 2nd International UNIfood Conference
University of Belgrade., 180.
https://hdl.handle.net/21.15107/rcub_agrospace_6888
Paunović D, Marković J, Rabrenović B, Laličić-Petronijević J, Rajić J, Petrović T. The influence of different heat treatment on the vitamin C content in pepper (Capsicum annuum L.). in Book of Abstracts of 2nd International UNIfood Conference. 2021;:180.
https://hdl.handle.net/21.15107/rcub_agrospace_6888 .
Paunović, Dragana, Marković, Jovana, Rabrenović, Biljana, Laličić-Petronijević, Jovanka, Rajić, Jasmina, Petrović, Tanja, "The influence of different heat treatment on the vitamin C content in pepper (Capsicum annuum L.)" in Book of Abstracts of 2nd International UNIfood Conference (2021):180,
https://hdl.handle.net/21.15107/rcub_agrospace_6888 .

Medicinal and aromatic herbs as functional ingredients for specialty beverages

Despotović, Saša; Paunović, Dragana; Marković, Jovana; Nedović, Viktor; Djordjević, Sofija; Veljović, Sonja; Martinović, Aleksandra

(2021)

TY  - GEN
AU  - Despotović, Saša
AU  - Paunović, Dragana
AU  - Marković, Jovana
AU  - Nedović, Viktor
AU  - Djordjević, Sofija
AU  - Veljović, Sonja
AU  - Martinović, Aleksandra
PY  - 2021
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/6892
AB  - INTRODUCTION:
The quest for foods that have a health-promoting impact began many years ago as a functional food. Nowadays, the varieties of food products and food ingredients are more about how they impact the health and well-being of consumers. Throughout history, herbs have been used to add taste and/or preservation to foods. The creative use of herbs can make food much more enjoyable, and not less healthy. Various herbal infusions can be added to beverage compositions to increase nutritional qualities and health benefits while maintaining a sensory and pleasant balance throughout the fortification process.
OBJECTIVES:
The primary objective of the study was to develop and manufacture specialty drinks made from fruit juices and extracts of medicinal and aromatic plants that had a high concentration of biologically active chemicals and a high antioxidant activity. 
Three types of soft drinks have been developed: those with potentially targeted physiologically beneficial effects on metabolism, cardiovascular system, and body resistance, as well as those with medicinal and aromatic herbs whose positive healing effects have already been documented in previous research.
METHOD / DESIGN:
Fruit juices were made by mechanically processing mature fruits, that have not been fermented and have been preserved only via physical methods. The plant material was dried in ambient conditions and ground shortly before extraction. A single percolation method was used to create liquid plant extracts. Extracts of medicinal and aromatic herbs were mixed in combinations with specific functional characteristics sensory acceptable and compatible with fruit blends. Total flavonoid content, polyphenols, and antioxidant capacity were determined. 
RESULTS:
Plant extracts and fruit juices were first classified in terms of total phenols, and their antioxidant activity was assessed using the FRAP and DPPH tests. The total antioxidant activity determined by the FRAP assay and the antioxidant activity determined by the DPPH test were correlated with the total phenol content. The number of phenolic compounds in tested herbal extracts and fruit juices differs significantly at the level of statistical significance of p 0.05. Given that antioxidant activity is 
directly proportional to phenolic component concentration, the FRAP and DPPH test both demonstrated statistically significant antioxidant activity.
CONCLUSIONS:
For the production of specialty beverages with targeted effects on accelerating metabolism, protection of the cardiovascular system, and strengthening the body’s resistance. While it is evident that a wide range of medicinal and aromatic plants may be utilized to improve the functional and sensory characteristics of beverages, the results are often not favorable. Blending 
various medicinal and aromatic herbs can provide a remedy, specialty beverage. The most essential issue is to select the best plant composition so that maximum functional characteristics may be balanced with pleasant sensory features.
T2  - Book of Abstracts of IBSC International Bioscience Conference and the 8th International PSU – UNS Bioscience, Conference Towards the SDG Challenges
T1  - Medicinal and aromatic herbs as functional ingredients  for specialty beverages
EP  - 95
SP  - 94
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_6892
ER  - 
@misc{
author = "Despotović, Saša and Paunović, Dragana and Marković, Jovana and Nedović, Viktor and Djordjević, Sofija and Veljović, Sonja and Martinović, Aleksandra",
year = "2021",
abstract = "INTRODUCTION:
The quest for foods that have a health-promoting impact began many years ago as a functional food. Nowadays, the varieties of food products and food ingredients are more about how they impact the health and well-being of consumers. Throughout history, herbs have been used to add taste and/or preservation to foods. The creative use of herbs can make food much more enjoyable, and not less healthy. Various herbal infusions can be added to beverage compositions to increase nutritional qualities and health benefits while maintaining a sensory and pleasant balance throughout the fortification process.
OBJECTIVES:
The primary objective of the study was to develop and manufacture specialty drinks made from fruit juices and extracts of medicinal and aromatic plants that had a high concentration of biologically active chemicals and a high antioxidant activity. 
Three types of soft drinks have been developed: those with potentially targeted physiologically beneficial effects on metabolism, cardiovascular system, and body resistance, as well as those with medicinal and aromatic herbs whose positive healing effects have already been documented in previous research.
METHOD / DESIGN:
Fruit juices were made by mechanically processing mature fruits, that have not been fermented and have been preserved only via physical methods. The plant material was dried in ambient conditions and ground shortly before extraction. A single percolation method was used to create liquid plant extracts. Extracts of medicinal and aromatic herbs were mixed in combinations with specific functional characteristics sensory acceptable and compatible with fruit blends. Total flavonoid content, polyphenols, and antioxidant capacity were determined. 
RESULTS:
Plant extracts and fruit juices were first classified in terms of total phenols, and their antioxidant activity was assessed using the FRAP and DPPH tests. The total antioxidant activity determined by the FRAP assay and the antioxidant activity determined by the DPPH test were correlated with the total phenol content. The number of phenolic compounds in tested herbal extracts and fruit juices differs significantly at the level of statistical significance of p 0.05. Given that antioxidant activity is 
directly proportional to phenolic component concentration, the FRAP and DPPH test both demonstrated statistically significant antioxidant activity.
CONCLUSIONS:
For the production of specialty beverages with targeted effects on accelerating metabolism, protection of the cardiovascular system, and strengthening the body’s resistance. While it is evident that a wide range of medicinal and aromatic plants may be utilized to improve the functional and sensory characteristics of beverages, the results are often not favorable. Blending 
various medicinal and aromatic herbs can provide a remedy, specialty beverage. The most essential issue is to select the best plant composition so that maximum functional characteristics may be balanced with pleasant sensory features.",
journal = "Book of Abstracts of IBSC International Bioscience Conference and the 8th International PSU – UNS Bioscience, Conference Towards the SDG Challenges",
title = "Medicinal and aromatic herbs as functional ingredients  for specialty beverages",
pages = "95-94",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_6892"
}
Despotović, S., Paunović, D., Marković, J., Nedović, V., Djordjević, S., Veljović, S.,& Martinović, A.. (2021). Medicinal and aromatic herbs as functional ingredients  for specialty beverages. in Book of Abstracts of IBSC International Bioscience Conference and the 8th International PSU – UNS Bioscience, Conference Towards the SDG Challenges, 94-95.
https://hdl.handle.net/21.15107/rcub_agrospace_6892
Despotović S, Paunović D, Marković J, Nedović V, Djordjević S, Veljović S, Martinović A. Medicinal and aromatic herbs as functional ingredients  for specialty beverages. in Book of Abstracts of IBSC International Bioscience Conference and the 8th International PSU – UNS Bioscience, Conference Towards the SDG Challenges. 2021;:94-95.
https://hdl.handle.net/21.15107/rcub_agrospace_6892 .
Despotović, Saša, Paunović, Dragana, Marković, Jovana, Nedović, Viktor, Djordjević, Sofija, Veljović, Sonja, Martinović, Aleksandra, "Medicinal and aromatic herbs as functional ingredients  for specialty beverages" in Book of Abstracts of IBSC International Bioscience Conference and the 8th International PSU – UNS Bioscience, Conference Towards the SDG Challenges (2021):94-95,
https://hdl.handle.net/21.15107/rcub_agrospace_6892 .

Promena nutritivnih i senzornih svojstava pri preradi povrća

Paunović, Dragana; Marković, Jovana

(Пољопривредни факултет, Београд - Земун, 2021)

TY  - GEN
AU  - Paunović, Dragana
AU  - Marković, Jovana
PY  - 2021
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/6896
AB  - Povrće predstavlja bogat izvor vitamina, mineralnih materija i dijetnih vlakana, a leguminoze sadrže i značajne količine proteina visoke biološke vrednosti. Konzumiranjem svežeg povrća obezbeđen je unos brojnih bioaktivnih komponenti koje imaju pozitivan efekat na ljudsko zdravlje. Međutim, većina povrća se mora na neki način preraditi, s ciljem povećanja iskoristivosti i svarljivosti, kao i dobijanja potrebnih tehnoloških karakteristika. Pri toplotnoj obradi dolazi do degradacije termolabilnih komponenti, što u osnovi znači da će se pri operacijama blanširanja i kuvanja, usled ekstrakcije, smanjiti sadržaj hidrosolubilnih vitamina (C, B-kompleks), a da će se pri operacijama prženja smanjiti sadržaj liposolubilnih vitamina (A, D, E, K). Na stabilnost vitamina pri preradi, osim temperature, utiču i pH vrednost, sadržaj mineralnih materija, prisustvo kiseonika i dejstvo UV zračenja. Karotenoidi su grupa hemijskih jedinjenja koja predstavljaju bojene pigmente povrća i voća (mrkva, paradajz, tikva, paprika i dr). U ovu grupu spadaju i jedinjenja koja imaju provitaminsku aktivnost, od kojih je najznačajniji ß-karoten, provitamin vitamina A. Utvrđeno je da se sadržaj ukupnih karotenoida u tikvi, podvrgnutoj različitim načinima toplotne obrade, značajno smanjio u odnosu na sirovu (za 61,5 – 68,5%), a da je pri operaciji kuvanja gubitak iznosio 7 – 10% više u odnosu na toplotnu obradu u konvencionalnoj i mikrotalasnoj pećnici. Tokom toplotne obrade povrća dešavaju se određene promene i na dijetnim vlaknima. Utvrđeno je da se kuvano povrće lakše i brže vari u odnosu na sirovo. Pri kuvanju kupusa i mrkve, lignin i hemiceluloza ostaju nepromenjeni, dok se značajna promena dešava na celulozi i pektinu. Toplotnom obradom povrća u vlažnoj sredini, dolazi do delimične hidrolize molekula protopektina, nastaje pektin, koji povećava viskozitet rastvora. Vlakna, koja su nerastvorljiva u vodi, delimično se razlažu, a posledica ovih promena je omekšavanje plodova. Pored promene konzistencije, tokom prerade povrća, odvijaju se i brojne hemijske reakcije enzimskog i neenzimskog potamnjivanja, koje doprinose promeni boje, ukusa i mirisa proizvoda. Prema dostupnim literaturnim podacima, toplotna obrada ne mora nužno da znači smanjenje nutrijenata u namirnici, a samim tim i nutritivne vrednosti. Naime, utvrđeno je da se toplotnom obradom paradajza povećava biološka dostupnost likopena, a da se nakon vlažne toplotne obrade spanaća povećava sadržaj kalcijuma.
PB  - Пољопривредни факултет, Београд - Земун
T2  - Zbornik izvoda X simpozijuma sa međunarodnim učešćem Inovacije u ratarskoj i povrtarskoj proizvodnji
T1  - Promena nutritivnih i senzornih svojstava pri preradi povrća
T1  - Changes of nutritional and sensory properties during vegetable processing
EP  - 20
SP  - 19
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_6896
ER  - 
@misc{
author = "Paunović, Dragana and Marković, Jovana",
year = "2021",
abstract = "Povrće predstavlja bogat izvor vitamina, mineralnih materija i dijetnih vlakana, a leguminoze sadrže i značajne količine proteina visoke biološke vrednosti. Konzumiranjem svežeg povrća obezbeđen je unos brojnih bioaktivnih komponenti koje imaju pozitivan efekat na ljudsko zdravlje. Međutim, većina povrća se mora na neki način preraditi, s ciljem povećanja iskoristivosti i svarljivosti, kao i dobijanja potrebnih tehnoloških karakteristika. Pri toplotnoj obradi dolazi do degradacije termolabilnih komponenti, što u osnovi znači da će se pri operacijama blanširanja i kuvanja, usled ekstrakcije, smanjiti sadržaj hidrosolubilnih vitamina (C, B-kompleks), a da će se pri operacijama prženja smanjiti sadržaj liposolubilnih vitamina (A, D, E, K). Na stabilnost vitamina pri preradi, osim temperature, utiču i pH vrednost, sadržaj mineralnih materija, prisustvo kiseonika i dejstvo UV zračenja. Karotenoidi su grupa hemijskih jedinjenja koja predstavljaju bojene pigmente povrća i voća (mrkva, paradajz, tikva, paprika i dr). U ovu grupu spadaju i jedinjenja koja imaju provitaminsku aktivnost, od kojih je najznačajniji ß-karoten, provitamin vitamina A. Utvrđeno je da se sadržaj ukupnih karotenoida u tikvi, podvrgnutoj različitim načinima toplotne obrade, značajno smanjio u odnosu na sirovu (za 61,5 – 68,5%), a da je pri operaciji kuvanja gubitak iznosio 7 – 10% više u odnosu na toplotnu obradu u konvencionalnoj i mikrotalasnoj pećnici. Tokom toplotne obrade povrća dešavaju se određene promene i na dijetnim vlaknima. Utvrđeno je da se kuvano povrće lakše i brže vari u odnosu na sirovo. Pri kuvanju kupusa i mrkve, lignin i hemiceluloza ostaju nepromenjeni, dok se značajna promena dešava na celulozi i pektinu. Toplotnom obradom povrća u vlažnoj sredini, dolazi do delimične hidrolize molekula protopektina, nastaje pektin, koji povećava viskozitet rastvora. Vlakna, koja su nerastvorljiva u vodi, delimično se razlažu, a posledica ovih promena je omekšavanje plodova. Pored promene konzistencije, tokom prerade povrća, odvijaju se i brojne hemijske reakcije enzimskog i neenzimskog potamnjivanja, koje doprinose promeni boje, ukusa i mirisa proizvoda. Prema dostupnim literaturnim podacima, toplotna obrada ne mora nužno da znači smanjenje nutrijenata u namirnici, a samim tim i nutritivne vrednosti. Naime, utvrđeno je da se toplotnom obradom paradajza povećava biološka dostupnost likopena, a da se nakon vlažne toplotne obrade spanaća povećava sadržaj kalcijuma.",
publisher = "Пољопривредни факултет, Београд - Земун",
journal = "Zbornik izvoda X simpozijuma sa međunarodnim učešćem Inovacije u ratarskoj i povrtarskoj proizvodnji",
title = "Promena nutritivnih i senzornih svojstava pri preradi povrća, Changes of nutritional and sensory properties during vegetable processing",
pages = "20-19",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_6896"
}
Paunović, D.,& Marković, J.. (2021). Promena nutritivnih i senzornih svojstava pri preradi povrća. in Zbornik izvoda X simpozijuma sa međunarodnim učešćem Inovacije u ratarskoj i povrtarskoj proizvodnji
Пољопривредни факултет, Београд - Земун., 19-20.
https://hdl.handle.net/21.15107/rcub_agrospace_6896
Paunović D, Marković J. Promena nutritivnih i senzornih svojstava pri preradi povrća. in Zbornik izvoda X simpozijuma sa međunarodnim učešćem Inovacije u ratarskoj i povrtarskoj proizvodnji. 2021;:19-20.
https://hdl.handle.net/21.15107/rcub_agrospace_6896 .
Paunović, Dragana, Marković, Jovana, "Promena nutritivnih i senzornih svojstava pri preradi povrća" in Zbornik izvoda X simpozijuma sa međunarodnim učešćem Inovacije u ratarskoj i povrtarskoj proizvodnji (2021):19-20,
https://hdl.handle.net/21.15107/rcub_agrospace_6896 .

Quality parameters of sunflower oil and palm olein during multiple frying

Paunović, Dragana; Demin, Mirjana; Petrović, Tanja; Marković, Jovana M.; Vujasinović, Vesna B.; Rabrenović, Biljana

(Univerzitet u Beogradu - Poljoprivredni fakultet, Beograd, 2020)

TY  - JOUR
AU  - Paunović, Dragana
AU  - Demin, Mirjana
AU  - Petrović, Tanja
AU  - Marković, Jovana M.
AU  - Vujasinović, Vesna B.
AU  - Rabrenović, Biljana
PY  - 2020
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5488
AB  - The refined sunflower and palm oils are used in the food industry for the production of fried potatoes. Literary data have shown that palm oil had less tendency to degradation than sunflower oil due to its fatty acid composition. However, palm olein is a palm oil fraction and therefore has a different composition of fatty acids. The aim of this study was to investigate the quality of the refined palm olein in relation to the refined linoleic type sunflower oil during the production of fried potatoes. The oil samples were used for multiple frying during the seven days (40 minutes per day at a temperature of 165o C). The peroxide value and free fatty acid content (acid value) were determined by standard analytical methods. The results showed that the peroxide value in sunflower oil and palm olein increased by 75.0% and 77.8%, while the acid value increased by 50.0% and 26.8%, respectively, in relation to their initial values in the fresh oil samples. Based on these results, it can be concluded that the palm olein was more suitable for frying. However, this finding cannot be reported with certainty because the quality of the oil depends on many more parameters, not only on those analysed in this paper.
AB  - U prehrambenoj industriji se za proizvodnju prženog krompira koriste rafinisano suncokretovo i palmino ulje. Prema literaturnim podacima, palmino ulje ima manju sklonost ka degradacionim promenama u odnosu na suncokretovo ulje, zahvaljujući sastavu masnih kiselina. Međutim, palmin olein je frakcija palminog ulja i samim tim ima drugačiji sastav masnih kiselina. Cilj ovog rada bio je da se ispita kvalitet rafinisanog palminog oleina u odnosu na rafinisano suncokretovo ulje tokom proizvodnje prženog krompira. Uzorci ulja su korišćeni za višestruko prženje tokom sedam dana (po 40 minuta svakog dana, na temperaturi od 165o C). Peroksidni broj i sadržaj slobodnih masnih kiselina (kiselinski broj) određeni su standardnim analitičkim metodama. Rezultati su pokazali da se peroksidni broj u suncokretovom ulju i palminom oleinu povećao 75,0% odnosno 77,8%, dok se kiselinski broj povećao 50,0% odnosno 26,8%, u odnosu na početne vrednosti u uzorcima svežeg ulja. Na osnovu ovih rezultata može se zaključiti da je palmin olein pogodniji za prženje. Međutim, ovaj zaključak se ne može navesti sa sigurnošću jer kvalitet ulja zavisi od mnogo više parametara, a ne samo od onih analiziranih u ovom radu.
PB  - Univerzitet u Beogradu - Poljoprivredni fakultet, Beograd
T2  - Journal of Agricultural Sciences (Belgrade)
T1  - Quality parameters of sunflower oil and palm olein during multiple frying
T1  - Parametri kvaliteta suncokretovog ulja i palminog oleina tokom višestrukog prženja
EP  - 68
IS  - 1
SP  - 61
VL  - 65
DO  - 10.2298/JAS2001061P
ER  - 
@article{
author = "Paunović, Dragana and Demin, Mirjana and Petrović, Tanja and Marković, Jovana M. and Vujasinović, Vesna B. and Rabrenović, Biljana",
year = "2020",
abstract = "The refined sunflower and palm oils are used in the food industry for the production of fried potatoes. Literary data have shown that palm oil had less tendency to degradation than sunflower oil due to its fatty acid composition. However, palm olein is a palm oil fraction and therefore has a different composition of fatty acids. The aim of this study was to investigate the quality of the refined palm olein in relation to the refined linoleic type sunflower oil during the production of fried potatoes. The oil samples were used for multiple frying during the seven days (40 minutes per day at a temperature of 165o C). The peroxide value and free fatty acid content (acid value) were determined by standard analytical methods. The results showed that the peroxide value in sunflower oil and palm olein increased by 75.0% and 77.8%, while the acid value increased by 50.0% and 26.8%, respectively, in relation to their initial values in the fresh oil samples. Based on these results, it can be concluded that the palm olein was more suitable for frying. However, this finding cannot be reported with certainty because the quality of the oil depends on many more parameters, not only on those analysed in this paper., U prehrambenoj industriji se za proizvodnju prženog krompira koriste rafinisano suncokretovo i palmino ulje. Prema literaturnim podacima, palmino ulje ima manju sklonost ka degradacionim promenama u odnosu na suncokretovo ulje, zahvaljujući sastavu masnih kiselina. Međutim, palmin olein je frakcija palminog ulja i samim tim ima drugačiji sastav masnih kiselina. Cilj ovog rada bio je da se ispita kvalitet rafinisanog palminog oleina u odnosu na rafinisano suncokretovo ulje tokom proizvodnje prženog krompira. Uzorci ulja su korišćeni za višestruko prženje tokom sedam dana (po 40 minuta svakog dana, na temperaturi od 165o C). Peroksidni broj i sadržaj slobodnih masnih kiselina (kiselinski broj) određeni su standardnim analitičkim metodama. Rezultati su pokazali da se peroksidni broj u suncokretovom ulju i palminom oleinu povećao 75,0% odnosno 77,8%, dok se kiselinski broj povećao 50,0% odnosno 26,8%, u odnosu na početne vrednosti u uzorcima svežeg ulja. Na osnovu ovih rezultata može se zaključiti da je palmin olein pogodniji za prženje. Međutim, ovaj zaključak se ne može navesti sa sigurnošću jer kvalitet ulja zavisi od mnogo više parametara, a ne samo od onih analiziranih u ovom radu.",
publisher = "Univerzitet u Beogradu - Poljoprivredni fakultet, Beograd",
journal = "Journal of Agricultural Sciences (Belgrade)",
title = "Quality parameters of sunflower oil and palm olein during multiple frying, Parametri kvaliteta suncokretovog ulja i palminog oleina tokom višestrukog prženja",
pages = "68-61",
number = "1",
volume = "65",
doi = "10.2298/JAS2001061P"
}
Paunović, D., Demin, M., Petrović, T., Marković, J. M., Vujasinović, V. B.,& Rabrenović, B.. (2020). Quality parameters of sunflower oil and palm olein during multiple frying. in Journal of Agricultural Sciences (Belgrade)
Univerzitet u Beogradu - Poljoprivredni fakultet, Beograd., 65(1), 61-68.
https://doi.org/10.2298/JAS2001061P
Paunović D, Demin M, Petrović T, Marković JM, Vujasinović VB, Rabrenović B. Quality parameters of sunflower oil and palm olein during multiple frying. in Journal of Agricultural Sciences (Belgrade). 2020;65(1):61-68.
doi:10.2298/JAS2001061P .
Paunović, Dragana, Demin, Mirjana, Petrović, Tanja, Marković, Jovana M., Vujasinović, Vesna B., Rabrenović, Biljana, "Quality parameters of sunflower oil and palm olein during multiple frying" in Journal of Agricultural Sciences (Belgrade), 65, no. 1 (2020):61-68,
https://doi.org/10.2298/JAS2001061P . .
6
9

Stability of carotenoids in pumpkin during the different heat treatments

Paunović, Dragana; Marković, Jovana; Ivanović, Evica; Rabrenović, Biljana; Despotović, Saša; Banjac, Nebojša

(2019)

TY  - GEN
AU  - Paunović, Dragana
AU  - Marković, Jovana
AU  - Ivanović, Evica
AU  - Rabrenović, Biljana
AU  - Despotović, Saša
AU  - Banjac, Nebojša
PY  - 2019
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/6891
AB  - Pumpkin contains a high content of carotenoids, the majority of which are alpha-carotene, beta-carotene, alpha-cryptoxanthin, lutein/zeaxanthin and violaxanthin. The main beneficial effect of carotenoids derives from their antioxidant activity, i.e. protecting cells against the harmful effects of free radicals. The aim of this study was to determine the content of total pumpkin carotenoids during cooking, baking in oven and a microwave oven to examine how different heat treatments affect on the stability of the carotenoids. The standard spectrophotometric method was used to determine the content of total carotenoids, measuring the absorbance of extracted samples at a wavelength of 445 nm. Samples were extracted by petrolether. According to the obtained results, the highest content of carotenoids was in fresh pumpkin (172,93 μg/g dry matter), then in a pumpkin baked in the oven (66,63 μg/g dry matter), then in a pumpkin baked in microwave oven (65,97 μg/g dry matter) and the lowest content of total carotenoids was determined in cooked pumpkin (54,42 μg/g dry matter). These results indicated that different heat treatments were significantly affected on the stability of carotenoids in pumpkin. The higher losses were during cooking, while the losses of baking in the oven and microwave oven were similar.
T2  - 1st International Conference on Advanced Production and Processing
T1  - Stability of carotenoids in pumpkin during the different heat treatments
SP  - 32
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_6891
ER  - 
@misc{
author = "Paunović, Dragana and Marković, Jovana and Ivanović, Evica and Rabrenović, Biljana and Despotović, Saša and Banjac, Nebojša",
year = "2019",
abstract = "Pumpkin contains a high content of carotenoids, the majority of which are alpha-carotene, beta-carotene, alpha-cryptoxanthin, lutein/zeaxanthin and violaxanthin. The main beneficial effect of carotenoids derives from their antioxidant activity, i.e. protecting cells against the harmful effects of free radicals. The aim of this study was to determine the content of total pumpkin carotenoids during cooking, baking in oven and a microwave oven to examine how different heat treatments affect on the stability of the carotenoids. The standard spectrophotometric method was used to determine the content of total carotenoids, measuring the absorbance of extracted samples at a wavelength of 445 nm. Samples were extracted by petrolether. According to the obtained results, the highest content of carotenoids was in fresh pumpkin (172,93 μg/g dry matter), then in a pumpkin baked in the oven (66,63 μg/g dry matter), then in a pumpkin baked in microwave oven (65,97 μg/g dry matter) and the lowest content of total carotenoids was determined in cooked pumpkin (54,42 μg/g dry matter). These results indicated that different heat treatments were significantly affected on the stability of carotenoids in pumpkin. The higher losses were during cooking, while the losses of baking in the oven and microwave oven were similar.",
journal = "1st International Conference on Advanced Production and Processing",
title = "Stability of carotenoids in pumpkin during the different heat treatments",
pages = "32",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_6891"
}
Paunović, D., Marković, J., Ivanović, E., Rabrenović, B., Despotović, S.,& Banjac, N.. (2019). Stability of carotenoids in pumpkin during the different heat treatments. in 1st International Conference on Advanced Production and Processing, 32.
https://hdl.handle.net/21.15107/rcub_agrospace_6891
Paunović D, Marković J, Ivanović E, Rabrenović B, Despotović S, Banjac N. Stability of carotenoids in pumpkin during the different heat treatments. in 1st International Conference on Advanced Production and Processing. 2019;:32.
https://hdl.handle.net/21.15107/rcub_agrospace_6891 .
Paunović, Dragana, Marković, Jovana, Ivanović, Evica, Rabrenović, Biljana, Despotović, Saša, Banjac, Nebojša, "Stability of carotenoids in pumpkin during the different heat treatments" in 1st International Conference on Advanced Production and Processing (2019):32,
https://hdl.handle.net/21.15107/rcub_agrospace_6891 .

The quality of sunflower oil and palm olein during the production of french fries

Paunović, Dragana; Demin, Mirjana; Petrović, Tanja; Marković, Jovana; Vujasinović, Vesna; Rabrenović, Biljana

(2019)

TY  - GEN
AU  - Paunović, Dragana
AU  - Demin, Mirjana
AU  - Petrović, Tanja
AU  - Marković, Jovana
AU  - Vujasinović, Vesna
AU  - Rabrenović, Biljana
PY  - 2019
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/6894
AB  - The refined sunflower and palm oil are used in the food industry for the production of French 
fries. Literary data have been shown that the palm oil had less tendency to degradation than 
sunflower oil, due to its fatty acid composition. However, palm olein is a palm oil fraction and 
therefore has a different composition of fatty acids. The aim of this study was to investigate 
quality of the refined palm olein in relation to the refined sunflower oil during the production 
of French fries. The oil samples were used for multiple frying during seven days (40 minutes 
per day at a temperature of 165 °C). The peroxide number and free fatty acids content (acid 
number) were determined by standard analytical methods. The results showed that the peroxide 
number in sunflower oil and palm olein increased by 75.0% and 77.8%, while the acid number 
increased by 50.0% and 26.8%, respectively, in relation to their initial values in fresh oil 
samples. Based on these results it can be concluded that the palm olein was more suitable for 
frying. However, this finding cannot be indicated with certainty because the quality of the oil 
depends on many more parameters, not only of analyzed in this paper.
T2  - 1st International Conference on Advanced Production and Processing
T1  - The quality of sunflower oil and palm olein during the production of french fries
SP  - 34
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_6894
ER  - 
@misc{
author = "Paunović, Dragana and Demin, Mirjana and Petrović, Tanja and Marković, Jovana and Vujasinović, Vesna and Rabrenović, Biljana",
year = "2019",
abstract = "The refined sunflower and palm oil are used in the food industry for the production of French 
fries. Literary data have been shown that the palm oil had less tendency to degradation than 
sunflower oil, due to its fatty acid composition. However, palm olein is a palm oil fraction and 
therefore has a different composition of fatty acids. The aim of this study was to investigate 
quality of the refined palm olein in relation to the refined sunflower oil during the production 
of French fries. The oil samples were used for multiple frying during seven days (40 minutes 
per day at a temperature of 165 °C). The peroxide number and free fatty acids content (acid 
number) were determined by standard analytical methods. The results showed that the peroxide 
number in sunflower oil and palm olein increased by 75.0% and 77.8%, while the acid number 
increased by 50.0% and 26.8%, respectively, in relation to their initial values in fresh oil 
samples. Based on these results it can be concluded that the palm olein was more suitable for 
frying. However, this finding cannot be indicated with certainty because the quality of the oil 
depends on many more parameters, not only of analyzed in this paper.",
journal = "1st International Conference on Advanced Production and Processing",
title = "The quality of sunflower oil and palm olein during the production of french fries",
pages = "34",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_6894"
}
Paunović, D., Demin, M., Petrović, T., Marković, J., Vujasinović, V.,& Rabrenović, B.. (2019). The quality of sunflower oil and palm olein during the production of french fries. in 1st International Conference on Advanced Production and Processing, 34.
https://hdl.handle.net/21.15107/rcub_agrospace_6894
Paunović D, Demin M, Petrović T, Marković J, Vujasinović V, Rabrenović B. The quality of sunflower oil and palm olein during the production of french fries. in 1st International Conference on Advanced Production and Processing. 2019;:34.
https://hdl.handle.net/21.15107/rcub_agrospace_6894 .
Paunović, Dragana, Demin, Mirjana, Petrović, Tanja, Marković, Jovana, Vujasinović, Vesna, Rabrenović, Biljana, "The quality of sunflower oil and palm olein during the production of french fries" in 1st International Conference on Advanced Production and Processing (2019):34,
https://hdl.handle.net/21.15107/rcub_agrospace_6894 .